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AMOLED drive circuit sharing scanning lines and driving method thereof

A driving circuit and driving method technology, applied in the direction of instruments, static indicators, etc., can solve the problems of burden, increase of signal lines and driver IC, etc., and achieve the effect of reducing scale and area

Inactive Publication Date: 2013-08-28
SHANGHAI ADVANCED RES INST CHINESE ACADEMY OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As the pixel scale expands, the number of required signal lines and driver ICs will also increase dramatically, which places a great burden on the control of the entire system

Method used

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  • AMOLED drive circuit sharing scanning lines and driving method thereof
  • AMOLED drive circuit sharing scanning lines and driving method thereof
  • AMOLED drive circuit sharing scanning lines and driving method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] Such as Figure 4 As shown, the present invention provides an AMOLED driving circuit shared by scan lines, which at least includes: a two-dimensional pixel matrix 1 , a scan driver 2 , a data driver 3 , a selection driver 4 and a control unit 5 .

[0044] The two-dimensional pixel matrix 1 is composed of M×N pixel units, wherein M represents the number of rows of the two-dimensional matrix, and N represents the number of columns of the two-dimensional matrix.

[0045] As an optimized structure of the present invention, each pixel unit in the two-dimensional pixel matrix 1 is composed of a light emitting diode 11, a driving thin film transistor 12, a switching thin film transistor 13, a gate thin film transistor 14, and a capacitor 15, as Figure 5 Shown is a driving circuit diagram with four rows and one column of pixel unit matrix.

[0046] Wherein, the cathode of the light emitting diode 11 is connected to the drain of the driving thin film transistor 12, the gate of...

Embodiment 2

[0055] The present invention provides a driving method for an AMOLED driving circuit shared by scanning lines, which is used to drive the driving circuit in Embodiment 1. The driving method at least includes the steps of:

[0056] Under the control of the control unit 5, the scanning line 21 output by the scanning driver 2 is selected;

[0057] If the gate selects the first selection line 41 of the driver 4, then a corresponding odd row pixel unit in the two-dimensional pixel matrix 1 is programmed, so that the data line information output by the data driver 3 is stored in the corresponding odd row pixel unit , make the pixel units of odd rows emit light;

[0058] If the gate selects the second selection line 42 of the driver 4, then a corresponding even row pixel unit in the two-dimensional pixel matrix 1 is programmed, so that the data line information output by the data driver 3 is stored in the corresponding even row pixel unit , make the pixel units of the even rows emit...

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Abstract

The invention provides an AMOLED drive circuit sharing scanning lines and a driving method thereof. The drive circuit at least comprises a two-dimensional pixel matrix, a scan driver, a data driver, a select driver and a control circuit. The two-dimensional pixel matrix is composed of pixel units with the number of M*N; the scan driver outputs at least one scanning line, and every two lines of pixel units in the two-dimensional pixel matrix share one scanning line; the data driver outputs at least one data line, and each data line is connected with a corresponding line of pixel units; the select driver outputs a first select line and a second select line, the first select line is connected with odd-numbered line pixel units in the two-dimensional pixel matrix, and the second select line is connected with even-numbered line pixel units in the two-dimensional pixel matrix; the control unit is connected with the scan driver, the data driver and the select driver respectively. According to the AMOLED drive circuit sharing the scanning lines, every two lines of pixel units share one scanning line, the scale of the scanning lines is changed to be half of an original scale, and the number of driving ICs is obviously reduced.

Description

technical field [0001] The invention relates to the field of plane display technology, in particular to an AMOLED drive circuit and a drive method for scanning line sharing. Background technique [0002] Compared with liquid crystal display (LCD), organic light-emitting diode (OLED) has gradually become the development direction of future display technology due to its small thickness, light weight, good flexibility, no backlight, fast response, and low energy consumption. [0003] OLED displays are formed from many light-emitting components, with each pixel including electronic circuitry for controlling the light-emitting diodes. The pixel units constitute the display system in the form of rows and columns, and each pixel of the array is programmed by updating a data value representing brightness information. [0004] In a related art 2-TFT type active matrix organic light emitting diode (AMOLED) pixel, a data value determining light intensity is externally supplied in the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/32G09G3/3225
Inventor 汪辉聂广震汪宁章琦封松林
Owner SHANGHAI ADVANCED RES INST CHINESE ACADEMY OF SCI
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